Line data    Source code

       1              : /**
       2              :  * Copyright (c) 2025 Huawei Technologies Co., Ltd.
       3              :  * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
       4              :  * CANN Open Software License Agreement Version 2.0 (the "License").
       5              :  * Please refer to the License for details. You may not use this file except in compliance with the License.
       6              :  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
       7              :  * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
       8              :  * See LICENSE in the root of the software repository for the full text of the License.
       9              :  */
      10              : 
      11              : #include "topo_match_partial_mesh.h"
      12              : 
      13              : namespace Hccl {
      14            0 : TopoMatchPartialMesh::TopoMatchPartialMesh(
      15            0 :     const RankId vRank, const u32 rankSize, const RankGraph* rankGraph, const DevType devType)
      16            0 :     : TopoMatchBase(vRank, rankSize, rankGraph, devType)
      17            0 : {}
      18              : 
      19            0 : TopoMatchPartialMesh::~TopoMatchPartialMesh() {}
      20              : 
      21            0 : HcclResult TopoMatchPartialMesh::MatchTopo(
      22              :     std::vector<std::vector<RankId>>& vTopo, std::vector<RankId>& virtRanks, std::map<RankId, u32>& virtRankMap)
      23              : {
      24              :     // 获取并校验通信层数
      25            0 :     std::set<u32> levelSet = rankGraph_->GetLevels(myRank_);
      26            0 :     CHK_PRT_RET(
      27              :         (levelSet.size() == COMM_LEVEL_SIZE_0),
      28              :         HCCL_ERROR("[CollAlgFactory] [TopoMatchPartialMesh] Rank [%d], Invalid virtual topo.", myRank_),
      29              :         HcclResult::HCCL_E_PARA);
      30              : 
      31              :     // 只有Level0 场景
      32            0 :     if (levelSet.size() == COMM_LEVEL_SIZE_1) {
      33            0 :         std::set<RankId> partialRankSetR0; // ranks vector of partial mesh topo
      34            0 :         partialRankSetR0.insert(myRank_);
      35            0 :         for (auto it : batchSendRecvtargetRanks_) {
      36            0 :             if (static_cast<RankId>(it) == myRank_) {
      37            0 :                 continue;
      38              :             }
      39            0 :             u32 pathNum = GetPathNum(myRank_, static_cast<RankId>(it));
      40            0 :             if (pathNum != 0) {
      41            0 :                 HCCL_DEBUG(
      42              :                     "[CollAlgFactory][TopoMatchPartialMesh] Rank [%d], remoteUsrRank [%d] has links.", myRank_,
      43              :                     static_cast<RankId>(it));
      44            0 :                 partialRankSetR0.insert(static_cast<RankId>(it));
      45              :             } else {
      46            0 :                 HCCL_ERROR(
      47              :                     "[CollAlgFactory][TopoMatchPartialMesh] Rank [%d], remoteUsrRank [%d] has no link.", myRank_,
      48              :                     static_cast<RankId>(it));
      49            0 :                 return HcclResult::HCCL_E_PARA;
      50              :             }
      51              :         }
      52            0 :         for (RankId rankId : partialRankSetR0) {
      53            0 :             rankIds_.push_back(rankId);
      54              :         }
      55              :         // Level0 和 Level1打平场景
      56            0 :     } else {
      57            0 :         CHK_RET(MeshTopoForAllLevel());
      58              :     }
      59            0 :     virtRanks = rankIds_;
      60            0 :     vTopo.push_back(rankIds_);
      61              : 
      62            0 :     CHK_PRT_RET(
      63              :         GenVirtRankMapping(virtRanks, virtRankMap) != HcclResult::HCCL_SUCCESS,
      64              :         HCCL_ERROR("[CollAlgFactory] [TopoMatchPartialMesh] Rank [%d], Fail to generate virtRankMapping.", myRank_),
      65              :         HcclResult::HCCL_E_INTERNAL);
      66            0 :     return HcclResult::HCCL_SUCCESS;
      67            0 : }
      68              : 
      69            0 : HcclResult TopoMatchPartialMesh::SetTargetRanks(std::set<u32>& targetRanks)
      70              : {
      71            0 :     batchSendRecvtargetRanks_ = targetRanks;
      72            0 :     HCCL_DEBUG(
      73              :         "[CollAlgFactory][TopoMatchPartialMesh] SetTargetRanks batchSendRecvtargetRanks_ size[%zu]",
      74              :         batchSendRecvtargetRanks_.size());
      75            0 :     return HcclResult::HCCL_SUCCESS;
      76              : }
      77              : 
      78            0 : HcclResult TopoMatchPartialMesh::MeshTopoForAllLevel()
      79              : {
      80            0 :     std::set<RankId> partialRankSet; // ranks vector of partial mesh topo
      81            0 :     partialRankSet.insert(myRank_);
      82            0 :     for (auto it : batchSendRecvtargetRanks_) {
      83            0 :         if (static_cast<RankId>(it) == myRank_) {
      84            0 :             continue;
      85              :         }
      86            0 :         u32 pathNum = GetPathNum(myRank_, static_cast<RankId>(it));
      87            0 :         if (pathNum != 0) {
      88            0 :             partialRankSet.insert(static_cast<RankId>(it));
      89              :         } else {
      90            0 :             HCCL_ERROR(
      91              :                 "[CollAlgFactory][TopoMatchPartialMesh] Rank [%d], remoteUsrRank [%d] has no link.", myRank_,
      92              :                 static_cast<RankId>(it));
      93            0 :             return HcclResult::HCCL_E_PARA;
      94              :         }
      95              :     }
      96            0 :     for (RankId rankId : partialRankSet) {
      97            0 :         rankIds_.push_back(rankId);
      98              :     }
      99            0 :     return HcclResult::HCCL_SUCCESS;
     100            0 : }
     101              : } // namespace Hccl